Hawaiian now has four A321neos in its fleet, with another 14 on order, according to Flight Fleets Analyzer.

The airline received its first two A321neos late last year. But Airbus halted deliveries of PW1100G-powered A320-family aircraft in February following several in-flight shutdowns caused by the knife edge seal in the high-pressure compressor.

Airbus resumed deliveries around the end of April, and Hawaiian received its third A321neo on 7 May, according to Flight Fleets Analyzer.

Hawaiian operates A321neos between Honolulu and both Portland and Long Beach, but has plans to soon expand flying to additional routes, it says.